<!DOCTYPE html>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<script>test(function(){});</script>
<style>
@keyframes Rotation{
  0% { transform: rotate(0deg) }
  100% { transform: rotate(360deg) }
}
</style>
<div style="columns: 82">
  <div id="target" style="columns: 82; visibility: hidden; -webkit-mask: url(#foo); width: 10px">
    <div style="animation: rotation 1s infinite; filter: blur(5px)"></div>
  </div>
</div>
